Maths Learning Number: Addition and Subtraction Term 3 week 3 lesson 2
Maths Learning Number:
Addition and Subtraction
Term 3 week 3 lesson 2
We are learning to…
WALT: subtract S2S (steps to success): I can: • use a tens frame to subtract • write the number sentence • form my numbers correctly
In focus
• 1) One less than is
• 2) Count backwards from 16 to 12
• 3) How do you spell the number 14?
• 4) What number is missing?
Lets learn
Subtraction take away 18-2=16
Subtraction take away 15-4=11
Subtraction take away ? - ? =14
The children built 13 snowmen. 2 melted over night. How many snowmen are left? Write your number sentence.
Using number bonds 17 − 2 =
1 ten + 7 ones
subtract 2 ones
1 ten + 5 ones
10 2 5
17
7 − 2 =
2 5
7
7 ones − 2 ones
Is equal to 5 ones
5 15
Have a think
13 − 2 = 11 3 − 2 = 1
19 − 4 = 15 9 − 4 = 5
18 − 6 = 12 8 − 6 = 2
If…. Then….
Have a think
16 − 2 = 14 6 − 2 = 4
17 − 4 = 13 7 − 4 = 3
19 − 6 = 13 9 − 6 = 3
If…. Then….
Independent practise
Plenary
Mrs Skinner has 8 sweets. She eat 2 sweets and gave 1 to Mrs Bunting. How many does she have left?